1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2015, The Linux Foundation. All rights reserved. 4 */ 5 6 #ifndef __DSI_CONNECTOR_H__ 7 #define __DSI_CONNECTOR_H__ 8 9 #include <linux/of_platform.h> 10 #include <linux/platform_device.h> 11 12 #include <drm/drm_bridge.h> 13 #include <drm/drm_crtc.h> 14 #include <drm/drm_mipi_dsi.h> 15 16 #include "msm_drv.h" 17 #include "disp/msm_disp_snapshot.h" 18 19 #define DSI_0 0 20 #define DSI_1 1 21 #define DSI_MAX 2 22 23 struct msm_dsi_phy_shared_timings; 24 struct msm_dsi_phy_clk_request; 25 26 enum msm_dsi_phy_usecase { 27 MSM_DSI_PHY_STANDALONE, 28 MSM_DSI_PHY_MASTER, 29 MSM_DSI_PHY_SLAVE, 30 }; 31 32 #define DSI_BUS_CLK_MAX 4 33 34 struct msm_dsi { 35 struct drm_device *dev; 36 struct platform_device *pdev; 37 38 /* internal dsi bridge attached to MDP interface */ 39 struct drm_bridge *bridge; 40 41 struct mipi_dsi_host *host; 42 struct msm_dsi_phy *phy; 43 44 /* 45 * external_bridge connected to dsi bridge output 46 */ 47 struct drm_bridge *external_bridge; 48 49 struct device *phy_dev; 50 bool phy_enabled; 51 52 /* the encoder we are hooked to (outside of dsi block) */ 53 struct drm_encoder *encoder; 54 55 int id; 56 }; 57 58 /* dsi manager */ 59 int msm_dsi_manager_bridge_init(struct msm_dsi *msm_dsi); 60 int msm_dsi_manager_ext_bridge_init(u8 id); 61 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg); 62 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len); 63 int msm_dsi_manager_register(struct msm_dsi *msm_dsi); 64 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); 65 void msm_dsi_manager_tpg_enable(void); 66 67 /* msm dsi */ 68 static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi) 69 { 70 return msm_dsi->external_bridge; 71 } 72 73 /* dsi host */ 74 struct msm_dsi_host; 75 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host, 76 const struct mipi_dsi_msg *msg); 77 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host, 78 const struct mipi_dsi_msg *msg); 79 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host, 80 const struct mipi_dsi_msg *msg); 81 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host, 82 const struct mipi_dsi_msg *msg); 83 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host, 84 u32 dma_base, u32 len); 85 int msm_dsi_host_enable(struct mipi_dsi_host *host); 86 int msm_dsi_host_disable(struct mipi_dsi_host *host); 87 void msm_dsi_host_enable_irq(struct mipi_dsi_host *host); 88 void msm_dsi_host_disable_irq(struct mipi_dsi_host *host); 89 int msm_dsi_host_power_on(struct mipi_dsi_host *host, 90 struct msm_dsi_phy_shared_timings *phy_shared_timings, 91 bool is_bonded_dsi, struct msm_dsi_phy *phy); 92 int msm_dsi_host_power_off(struct mipi_dsi_host *host); 93 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, 94 const struct drm_display_mode *mode); 95 enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, 96 const struct drm_display_mode *mode); 97 unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); 98 int msm_dsi_host_register(struct mipi_dsi_host *host); 99 void msm_dsi_host_unregister(struct mipi_dsi_host *host); 100 void msm_dsi_host_set_phy_mode(struct mipi_dsi_host *host, 101 struct msm_dsi_phy *src_phy); 102 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host, 103 struct msm_dsi_phy *src_phy); 104 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host); 105 void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host, 106 struct msm_dsi_phy_clk_request *clk_req, 107 bool is_bonded_dsi); 108 void msm_dsi_host_destroy(struct mipi_dsi_host *host); 109 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host, 110 struct drm_device *dev); 111 int msm_dsi_host_init(struct msm_dsi *msm_dsi); 112 int msm_dsi_runtime_suspend(struct device *dev); 113 int msm_dsi_runtime_resume(struct device *dev); 114 int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host); 115 int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host); 116 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host); 117 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host); 118 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host); 119 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host); 120 unsigned long dsi_byte_clk_get_rate(struct mipi_dsi_host *host, bool is_bonded_dsi, 121 const struct drm_display_mode *mode); 122 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size); 123 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size); 124 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host); 125 void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host); 126 void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host); 127 void msm_dsi_tx_buf_free(struct mipi_dsi_host *mipi_host); 128 int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova); 129 int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova); 130 int dsi_clk_init_v2(struct msm_dsi_host *msm_host); 131 int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host); 132 int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 133 int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 134 void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host); 135 void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host); 136 struct drm_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host); 137 bool msm_dsi_host_is_wide_bus_enabled(struct mipi_dsi_host *host); 138 139 /* dsi phy */ 140 struct msm_dsi_phy; 141 struct msm_dsi_phy_shared_timings { 142 u32 clk_post; 143 u32 clk_pre; 144 bool clk_pre_inc_by_2; 145 bool byte_intf_clk_div_2; 146 }; 147 148 struct msm_dsi_phy_clk_request { 149 unsigned long bitclk_rate; 150 unsigned long escclk_rate; 151 }; 152 153 void msm_dsi_phy_driver_register(void); 154 void msm_dsi_phy_driver_unregister(void); 155 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, 156 struct msm_dsi_phy_clk_request *clk_req, 157 struct msm_dsi_phy_shared_timings *shared_timings); 158 void msm_dsi_phy_disable(struct msm_dsi_phy *phy); 159 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy, 160 enum msm_dsi_phy_usecase uc); 161 void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy); 162 int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy); 163 void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy); 164 bool msm_dsi_phy_set_continuous_clock(struct msm_dsi_phy *phy, bool enable); 165 166 #endif /* __DSI_CONNECTOR_H__ */ 167 168